
Choosing the right air conditioning unit can be overwhelming, but it doesn't have to be. With so many options available, it's essential to consider factors like energy efficiency, cooling capacity, and noise level.
In this comparison, we'll examine popular air conditioning unit types, including window units, portable units, and split systems. These types vary in their installation requirements, energy consumption, and cooling capabilities.
Window units, for example, are easy to install and require minimal space, but they can be noisy and have limited cooling capacity. On the other hand, split systems provide more efficient cooling and are often quieter, but they require professional installation and more extensive space.
Ultimately, the best air conditioning unit for you will depend on your specific needs and preferences. By considering these factors and comparing different options, you can find the perfect unit for your home or office.
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Product Reviews
When choosing an air conditioning unit, it's essential to consider the energy efficiency of the model. Some units, like the LG 5,000 BTU Window Unit, have an Energy Star rating, indicating they meet energy efficiency standards set by the US Environmental Protection Agency.
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The LG 5,000 BTU Window Unit also features a 12.1 Energy Efficiency Ratio (EER), which is a measure of how efficiently a unit can cool a space. This is a significant factor to consider, especially for those looking to save on their electricity bills.
In terms of noise levels, the LG 5,000 BTU Window Unit operates at a relatively quiet 41 decibels, making it suitable for bedrooms or living rooms.
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GE Profile AHTT08BC
The GE Profile AHTT08BC Clearview Air Conditioner is a great choice for maintaining a clear view from your window. It's designed to sit lower in your windowsill, so you can open and close your window freely.
This air conditioner has a 350 sq. ft cooling area and can cool an 8,300 BTU space. It's also very energy-efficient, with a CEER rating of 11.4.
The GE Profile AHTT08BC runs quietly, with a noise level of just 41 dB. This is impressive, especially considering it's a window air conditioner.
Here are some key features of the GE Profile AHTT08BC at a glance:
The digital control panel is easy to navigate, and the automatic shut-off feature turns it off when not in use, eliminating any annoying glare at night.
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Product Reviews
If you're in the market for a portable air conditioner, you've likely come across a few different models to consider.
The Black+Decker 14,000 BTU Smart Portable Air Conditioner is a great option for smaller spaces, working well in rooms up to 700 square feet.
It's also designed for quick installation and can noticeably cool down a room quickly, making it a great choice for hot summer days.
One of its standout features is the unit's ability to operate in multiple modes, including heat, dehumidifier, and fan modes.
The Midea Duo 14,000 BTU Portable Air Conditioner is another contender, featuring a variable-speed inverter that cycles through modes depending on the temperature of the room and your desired setting.
This makes it a more convenient option than a model you have to change manually, or with less adjustable controls.
The Midea model also boasts a quieter operation, sitting at a noise level of 42 dB on its lowest setting.
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Here are some key specs to consider when choosing between these two models:
The Black+Decker model is also a bit more compact, measuring 14 x 16.5 x 27 in. compared to the Midea model's 16.73 x 19.53 x 32.48 in.
GE Profile PPHV10WWF 10000
The GE Profile PPHV10WWF 10,000 BTU Portable Air Conditioner is a solid choice for anyone looking for a reliable and efficient cooling solution. It has a large-capacity dehumidifier functionality, which is perfect for hot and humid climates.
This unit features a dual hose design, allowing it to take in and exhaust air at a faster and more efficient rate, resulting in cool air almost immediately. The auto louvers also help to evenly distribute air in a given space by shifting the slats up and down.
The GE Profile PPHV10WWF has a cooling area of 450 sq ft and a cooling capability of 10,000 BTUs. The CEER rating is 13.6, which indicates its energy efficiency.
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One of the highlights of this portable model is its quiet operation, with a noise level of 42 dB on normal speeds. The unit also has a turbo mode that turns the fans up to an even higher level, making it perfect for larger spaces.
Here's a comparison of the cooling areas and capabilities of the three portable air conditioners mentioned:
The GE Profile PPHV10WWF also features built-in Wi-Fi technology, making it easy to control and monitor the unit remotely. This is a great feature for those who want to stay cool and connected on the go.
GE AwGP08WWA 8,000 BTU Window Unit
The GE AwGP08WWA 8,000 BTU Window Unit is a solid choice for cooling and heating small to medium-sized rooms. It can cool an area of 350 sq. ft.
This unit is capable of bringing a room from 85 to 75 degrees Fahrenheit in just 15 minutes, and another 10 minutes dropped the temps to 68 degrees. It also significantly cut down the moisture in the air.
One of the downsides is that the setup can be tricky, and app connectivity can be inconsistent. This can be frustrating, but it's worth noting that the unit still runs without the app.
The GE AwGP08WWA 8,000 BTU Window Unit comes with a one-year warranty from the day you buy, which can give you peace of mind in case you experience any issues.
Here are the key specs for this unit:
- Cooling Area: 350 sq. ft
- Cooling Capability: 8,000 BTU
- CEER: 13.2
- Noise Level: 40 dB
- Dimensions: 13.3 x 19 x 18.2 in.
Looking for Quality? Try Trane Central Conditioning Units
Trane air conditioning systems are the way to go if you want top-notch performance. Trane's commitment to excellence in engineering dates back to 1931, when they debuted their first air conditioner.
The TruComfort system is a game-changer, offering an automatic thermostat, variable fan adjustment, and compressor sound insulator. This means you'll stay cool and comfortable without the noise.
CleanEffects air filtration system is another standout feature, providing superior air purification and eliminating pollutants like pollen, dust, and mold. This is especially important for people with allergies or respiratory issues.
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Reduced Energy Consumption is a major perk of Trane air conditioners. They meet rigorous Energy Star standards, which means lower energy bills and a smaller carbon footprint.
Here are some key benefits of Trane air conditioners at a glance:
- TruComfort system with automatic thermostat, variable fan adjustment, and compressor sound insulator
- CleanEffects air filtration system for superior air purification
- Reduced Energy Consumption with Energy Star-certified models
- Expert Engineering with high-performance compressors and spine-fin coils
Trane's focus on excellence has paid off, with their modern air conditioners offering high-performance compressors, spine-fin coils, and variable speed cooling.
Product Comparison
Our team tested window air conditioners and portable a/c units from trusted brands over six weeks, noting ease of setup and pain points. We ran units through their paces using remote controls and apps, with cooling efficiency being our main concern.
For window units, we measured the distance a cool breeze could be felt, known as throw, and recommend models that throw cool air at least five feet.
Portable units, on the other hand, were tested by turning the fan speed to high and setting the temperature at 68 degrees, then pointing cold air at a target roughly 8 feet away.
We considered key features while comparing units, including noise level, the number of programs and fan modes included, usability of apps and remote controls, and whether units included extra cooling or heating features.
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How We Tested

We tested window air conditioners and portable a/c units from trusted brands like GE, LG, Frigidaire, and Dreo in homes and offices over six weeks. Our team installed each unit and noted any pain points during the setup process.
We ran units through their paces using remote controls and apps, with cooling efficiency being our main concern. We considered key features like noise level, fan modes, and app usability.
For window units, we measured the distance a cool breeze could be felt, known as throw, and recommend models that throw cool air at least five feet. This ensures you get a decent cooling effect in the room.
We also tested portable units by turning the fan speed to high and setting the temperature at 68 degrees, then pointing cold air at a target roughly 8 feet away. This gives you an idea of the unit's cooling power.
We've also reviewed and installed air conditioners extensively, and we stand by some models we haven't tested on this list, like the Best Budget Frigidaire model and the Senville Leto Series Mini-Split, as viable options for a value a/c and a ductless model.
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Understanding AC Unit Differences
Air conditioning units come in different types, sizes, and configurations. Knowing the differences among them is crucial in determining which unit is best for your needs.
Window units are ideal for single rooms or small spaces. They are compact and easy to install, making them a popular option for apartments or small offices.
Window air conditioners require more effort to install and may necessitate tweaks to the room's window frame, including mounting and securing. They are permanent room cooling units that are found through a room's window.
For those who want individual temperature control in different rooms, ductless mini-split systems are a great choice. They offer zoned cooling, with an outdoor unit connected to multiple indoor units.
Portable air conditioners are versatile and can be moved from one room to another. They are suitable for small spaces and do not require permanent installation, making them a convenient option.
Here are the main types of air conditioning units:
- Window units: compact, easy to install, and suitable for single rooms or small spaces
- Central air units: designed to cool large spaces, like entire homes or office buildings
- Split systems: allow for a more flexible installation, with an indoor unit and an outdoor unit connected by refrigerant lines
- Ductless mini-split systems: offer zoned cooling, with individual temperature control in different rooms
- Portable air conditioners: versatile, can be moved from one room to another, and suitable for small spaces
Window units can take up valuable floor space, but they don't require a nearby window to vent the hot air. Thru-wall units, on the other hand, occupy neither window nor floor space, offering a clean and unobtrusive cooling solution.
Thru-the-wall air conditioners are permanent cooling units that are ideal for larger living spaces. They're installed directly into an exterior wall, providing a space-saving cooling solution.
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LG 10000
The LG 10000 BTU Portable Air Conditioner is a convenient option for cooling down a room, especially when you need to target specific areas. It can cool a space of up to 450 sq ft.
This model has a quick cooling capability, blowing out cold air in no time. It also has a built-in dehumidifier, which helps to remove excess moisture from the air. With the ability to move the device around, you can target problem areas and hot spots in the room.
The LG 10000 is relatively quiet, operating at a noise level of 44 dB. It also has a cooling, fan, and dry mode, giving you flexibility in how you use it. The unit comes mostly assembled, making setup a breeze.
Here's a comparison of the LG 10000's features:
Overall, the LG 10000 is a solid option for those looking for a portable air conditioner that can effectively cool a room.
Dreo AC515S
The Dreo AC515S is a solid choice for anyone looking for a portable air conditioner. It's relatively affordable, with a cooling area of 600 sq ft and 12,000 BTUs of power.
One of the standout features of the Dreo AC515S is its digital display panel and app compatibility. This allows for easy control and monitoring of the unit from your phone.
The included physical remote is a major plus, making it easy to adjust the cooling speed and temperature, set the sleep timer, and turn on the auto-swing function. It's also magnetic, so you don't have to worry about losing it.
The Dreo AC515S has a noise level of 46dB, making it a relatively quiet option. Its dimensions are 14.37 x 17.32 x 28.13 in., so it's a compact choice for small spaces.
Here's a quick summary of the Dreo AC515S's key specs:
Windmill Smart Window
The Windmill Smart Window Air Conditioner is a great option for those looking for a sleek and efficient cooling solution. It's designed to be quiet, with a noise level of 50 dB, making it perfect for bedrooms or living rooms.
This unit has a cooling area of 350 sq ft and a cooling capability of 8,000 BTU, which is suitable for small to medium-sized rooms. The CEER rating is 15, which indicates its energy efficiency.
One of the standout features of the Windmill Smart Window Air Conditioner is its sleek design, which makes it easy to fit into any room's décor. It also comes with a remote, making it easy to control from the comfort of your couch.
The unit's dimensions are 22.5 x 19.3 x 13.3 in., making it a compact and space-saving solution. The display automatically dims, which is a nice touch, and the high fan speed is enough to cool the room down in the evenings during the summer.
Split System vs. Ductless Mini-Split: Which is Better?
Split systems require ductwork, which can be costly and time-consuming to install. This can be a major drawback for homeowners who are on a budget or have limited space.
Ductless mini-split systems, on the other hand, are easier and less expensive to install because they don't need ducts. This makes them a great option for those who want a hassle-free installation process.
Split systems can be more expensive upfront compared to ductless mini-split systems, but they can save on electricity costs in the long run. However, this benefit may not outweigh the higher upfront cost for many homeowners.
Ductless mini-split systems offer more flexibility with the option to have multiple indoor units connected to one outdoor unit. This allows for more customization and control over the cooling system.
Split systems do not offer zoned cooling, meaning you cannot have different temperatures in different rooms. This can be a major drawback for homeowners who want to save energy and stay comfortable in specific areas of their home.
Ductless mini-split systems, however, provide zoned cooling, allowing for individual temperature control in each room. This can be a game-changer for families or households with different temperature preferences.
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Central AC Units
Central AC units are the most common type used by St. Louis residents, providing efficient and effective cooling throughout the home.
They use a ductwork system and are controlled by a thermostat, making them a convenient option.
Central AC units won't obstruct your window view, as they're designed to be unobtrusive.
If you have a large home, a central air conditioning unit is often the best choice, as it's more practical and cost-effective than installing individual units in every room.
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Portable Removed
Portable Removed is a great option for those who need flexibility in their cooling solutions. They're perfect for renters who can't make permanent modifications to their living space.
Portable air conditioners are incredibly easy to setup and install. Simply attach the exhaust hose to a window kit and plug it in.
They're also mobile and ideal for smaller living spaces and rooms.
Key Features
The Frigidaire Gallery window air conditioner has a cooling area of 550 sq ft. and a cooling capability of 12,000 BTU.
It's also worth noting that some air conditioners have a fan mode and eco-mode to save energy, and some units have a heater and dehumidifier. The unit's interface can also vary, with basic units having manual controls and smart units being app controlled.
Here are some key features to consider when comparing air conditioning units:
- Fan mode and eco-mode for energy savings
- Heater and dehumidifier options
- Manual or app-controlled interface
- Timers and automatic cooling programs
Key Specs
The Frigidaire Gallery window air conditioner has some impressive key specs that make it a great choice for cooling your space. Here are the details:
The cooling area it can cover is 550 sq ft, which is perfect for large bedrooms.
It has a cooling capability of 12,000 BTU, which is more than enough to keep your space cool on hot days.
The CEER rating is 15, which indicates its energy efficiency.
The noise level is a quiet 42 dB, making it perfect for bedrooms or living rooms.
Here are the dimensions of the unit: 13.5 x 19.2 x 22.7 in.
This U-shaped design is a game-changer, as it sits around the windowsill rather than on top of it, giving you more flexibility with your curtains.
Features

When choosing an air conditioner, consider the unit's features. Most units have a fan mode to circulate air, and some units also have an eco-mode to save energy.
Some air conditioners come with additional features like a heater and dehumidifier, which can be super helpful in certain climates or situations.
Manual controls are common in basic units, and many come with a remote control for convenience. Smart units, on the other hand, can be controlled through an app.
Timers and automatic cooling programs can also be useful features to consider.
Warranty
When choosing an air conditioner, one important feature to consider is the warranty. Every air conditioner comes with a warranty covering the parts involved in case they break down during a certain period of time.
A longer warranty means you're covered for a greater period of time in the event repairs are needed down the road. This can be a lifesaver if you're not prepared for unexpected repair costs.
Various brands and HVAC companies will provide different options for extended warranties that can save you repair costs during the system's extended lifespan.
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Energy Efficiency
Energy efficiency is a crucial aspect to consider when choosing an air conditioner. The CEER rating, or Combined Energy-Efficiency Ratio, is the efficiency rating for window air conditioners, expressing the ratio of cooling capacity to electricity usage.
A higher CEER rating means a more efficient appliance. You'll also see EER numbers for portable air conditioners, which measure cooling efficiency over a season. A higher EER is better than a lower one.
The SEER rating, or Seasonal Energy Efficiency Ratio, gives you a quick-glance look at a system's effectiveness. The higher the rating, the better job it does at cooling your home. The minimum standard SEER is 13 for air conditioners.
Window and wall air conditioners are generally more energy-efficient than portable units, resulting in lower electricity bills. Thru-wall ACs are known for their energy efficiency, featuring advanced cooling technologies and programmable settings.
On a similar theme: Energy Efficient Window Air Conditioning Units
Noise Levels
Noise levels can be a concern when it comes to air conditioners, but the good news is that many modern units are designed to be relatively quiet.
A typical noise level for most air conditioners is between 42 to 48 decibels, which is comparable to a refrigerator humming or an office setting. This is a common range for window units, which sit outside the room and direct most of the noise outwards.
However, portable air conditioners can be louder since the entire unit, including the compressor, sits inside the room. In fact, some window units can still be louder than wall units, which are generally known for their quiet operation.
One example of a relatively quiet window unit is the Frigidaire Gallery window air conditioner, which operates at exactly 42 dBA on its lowest fan speed. This makes it a great option for bedrooms or living rooms where noise levels can be a concern.
Here's a comparison of different types of air conditioners and their typical noise levels:
Keep in mind that these are general estimates, and actual noise levels can vary depending on the specific unit and its features.
Performance Metrics
The CEER rating is a key performance metric for window air conditioners, measuring the ratio of cooling capacity to electricity used, with higher ratings indicating better efficiency.
A higher CEER rating means the appliance uses less energy to cool your space, which can lead to lower energy bills and a reduced carbon footprint.
The EER rating, on the other hand, measures the cooling efficiency of an air conditioner over an entire season, with higher ratings also indicating better performance.
It's worth noting that CEER and EER are different from SEER, which is used for heat pumps and central air conditioning systems.
The SEER rating gives you a quick-glance look at a system's effectiveness, with higher ratings indicating a better job at cooling your home.
A minimum standard SEER is 13 for air conditioners, but most modern systems have a SEER that ranges from 13 to 21.
Window air conditioners are generally more efficient than portable AC units, making them a great choice for larger rooms.
Window ACs are an excellent option for rooms in apartments and condos, offering robust cooling performance and customizable options.
Thru-wall ACs are the most efficient of the bunch, providing consistent and reliable cooling for larger spaces and high-demand environments.
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Installation and Maintenance
Portables require minimal installation - simply place the unit near a window to vent the exhaust hose, and you're good to go.
Installation can be a bit more involved for Window Air Conditioners, as they need to be designed to fit within a window frame.
Thru-Wall Air Conditioners, installed through an external wall, are a permanent room cooling solution that often requires professional help for installation.
For long-term use, Thru-Wall Air Conditioners are ideal for hotels, apartments, and senior living communities.
Window Air Conditioners are ideal for single-room cooling, making them a great choice for small spaces.
Portables are an excellent choice for renters and those looking for a quick cooling solution due to their minimal installation process.
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Frequently Asked Questions
What is the most efficient type of AC unit?
Most efficient AC units are ductless/mini-split systems, offering top-notch energy efficiency
Is it better to oversize or undersize an AC unit?
For optimal performance, it's generally recommended to size an AC unit correctly, rather than oversizing or undersizing it. Oversizing can lead to frequent cycling, wear and tear, and humidity issues, while undersizing may not provide sufficient cooling.
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